87869459 has 4 divisors (see below), whose sum is σ = 87962616. Its totient is φ = 87776304.

The previous prime is 87869401. The next prime is 87869497. The reversal of 87869459 is 95496878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87869459 - 2¹² = 87865363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87869059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45149 + ... + 47054.

It is an arithmetic number, because the mean of its divisors is an integer number (21990654).

Almost surely, 2^87869459 is an apocalyptic number.

87869459 is a deficient number, since it is larger than the sum of its proper divisors (93157).

87869459 is an equidigital number, since it uses as much as digits as its factorization.

87869459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93156.

The product of its digits is 4354560, while the sum is 56.

The square root of 87869459 is about 9373.8710786953. The cubic root of 87869459 is about 444.5759694326.

The spelling of 87869459 in words is "eighty-seven million, eight hundred sixty-nine thousand, four hundred fifty-nine".